straight up-and-down filament
锯齿式灯丝

• Loose-tube buffering
• lopair
• lopair gas detector
• lopcking device
• Lorentz broadening
• Lorentz coefficient
• Lorentz field
• Lorentz force
• Lorentzian curve
• Lorentz line shap
• Lorentz-Lorenz equation
• Lorentz-Lorenz formula
• Lorentz number
• loss
• loss by one path
• loss factor
• loss-free medium
• loss-free reflectivity mechanism
• lossless network
• lossless uniform fibre
• loss-modulated laser
• loss of resonator
• loss paer pass
• loss source
• Loss tube splicer